And I thought you would like to have the following Makefile for this platform:

Makefile.osf1:

----------------------------------------------------------------------
# $Header: $
#
# Tag Image File Format Library
#
# Copyright (c) 1988, 1989, 1990, 1991, 1992 Sam Leffler
# Copyright (c) 1991, 1992 Silicon Graphics, Inc.
#
# Permission to use, copy, modify, distribute, and sell this software and
# its documentation for any purpose is hereby granted without fee, provided
# that (i) the above copyright notices and this permission notice appear in
# all copies of the software and related documentation, and (ii) the names of
# Sam Leffler and Silicon Graphics may not be used in any advertising or
# publicity relating to the software without the specific, prior written
# permission of Sam Leffler and Silicon Graphics.
#
# THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
# EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
# WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
#
# IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
# ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
# WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
# LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
# OF THIS SOFTWARE.
#
# This Makefile is designed for DEC AlphaAXP, OSF/1 v1.3
#
# The library will be installed in $(DESTDIR)/lib and the included
# files in $(DESTDIR)/include
DESTDIR=/usr/local
#
AR= /bin/ar
#
# SHELL, CTAGS, RANLIB and INSTALL is not defined in standard make for OSF1
#
RANLIB=/usr/bin/ranlib
SHELL=/bin/sh
CTAGS=ctags -tw
#
# NOTE: The OSF/1 versions of install is execute by root only, or SYSV versions.
# INSTALL=/usr/ucb/install -c -m 444
INSTALL=/bin/cp
#
NULL=